feinstein, reinstating the assault weapons ban, limiting the amount of ammunition that could be in a magazine. they're looking for what they call sensible gun control. but they also recognize that because of the gun lobbying here in washington, d.c. that it's a very tough battle that they are about to fight. >> i was going to say, they have a pretty tough battle ahead of them for sure. emily, thank you very much. appreciate it. >> reporter: yep. >>> now the latest on lance armstrong. his attorney says armstrong will not testify in front of the u.s. anti-doping agency, at least not before the deadline expires. usada's chief says armstrong has until february 6th to testify about his drug use. he also had this to say to 60 minutes about armstrong's assertion that he did not really think he was cheating. >> it's amazing. you could go to almost any kindergarten in this country or frankly around the world and find kids playing tag or four square and ask them what cheating is. and every one of them will tell you it's breaking the rules of the game. no real athlete has to look up the definit